[meteorite-list] Red(dish) Fusion Crust

From: Michael Johnson <meteoreisen_at_meteoritecentral.com>
Date: Wed, 29 May 2013 13:50:02 -0400
Message-ID: <C940C487-51B2-4F7E-B826-344C4DB8A468_at_ymail.com>

Same as I thought perhaps oxidation on one side of this bensour but now I learn otherwise:
http://www.johnsonmeteorites.com/BENSOUR.html

Johnson, M.D.
www.johnsonmeteorites.com
Thumbed on my iPhone

On May 29, 2013, at 12:14 PM, "Martin Altmann" <altmann at meteorite-martin.de> wrote:

> Hiho,
>
> I'm thrilled, maybe now many readers of the list
> rush to their drawers and showcases, to look for more examples of other
> falls,
> where they thought before, that the lighter colour was due terrestrial
> oxidation and the individuals not that fresh.
>
> Let's wait, what they'll find!
> Martin
>
>
> -----Urspr?ngliche Nachricht-----
> Von: Jason Utas [mailto:meteoritekid at gmail.com]
> Gesendet: Mittwoch, 29. Mai 2013 18:02
> An: Martin Altmann
> Betreff: Re: [meteorite-list] Red(dish) Fusion Crust
>
> Hola,
> Looking at his page....the Buzzard is red to a much lesser extent.
> Good observation, though -- it makes sense that H's would still show at
> least some hematite presence, if that is was causes the red coloration.
>
> The first link in my last email goes against what you say above. Note that
> the pictured stone has a black, frothy rear and a reddish shield-shaped
> front.
>
> Regards,
> Jason
>
> www.fallsandfinds.com
>
>
> On Wed, May 29, 2013 at 8:41 AM, Martin Altmann
> <altmann at meteorite-martin.de> wrote:
>> Hi,
>>
>>> But, then...why don't H chondrites usually form such red fusion crusts?
>>
>> But they do,
>> the example on Svend's page is a Buzzard Coulee, and in literature you
>> read it about Pultusk.
>>
>>> This list seems to have a short memory.
>>
>> Well, the specialty here, is that a colour variation in the crust, if
>> found only on one side, can be used as criterion for orientation. Most
>> of the examples shown here, underline, that stones must have had at
>> least a longer phase of stable flight, because it is indicated by the
>> lipping around the edges of these sides. (Which identify the coloured
> sides as backsides).
>>
>> Best,
>> Martin
>>
>>
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Received on Wed 29 May 2013 01:50:02 PM PDT